CN112554854B - System and method for determining water absorption profile - Google Patents
System and method for determining water absorption profile Download PDFInfo
- Publication number
- CN112554854B CN112554854B CN202011397455.3A CN202011397455A CN112554854B CN 112554854 B CN112554854 B CN 112554854B CN 202011397455 A CN202011397455 A CN 202011397455A CN 112554854 B CN112554854 B CN 112554854B
- Authority
- CN
- China
- Prior art keywords
- water absorption
- well
- water
- oil
- relative
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 295
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 183
- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000002347 injection Methods 0.000 claims abstract description 78
- 239000007924 injection Substances 0.000 claims abstract description 78
- 239000003129 oil well Substances 0.000 claims abstract description 25
- 238000004364 calculation method Methods 0.000 claims abstract description 22
- 238000004891 communication Methods 0.000 claims abstract description 22
- 238000011161 development Methods 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 7
- 230000035699 permeability Effects 0.000 claims description 4
- 238000004422 calculation algorithm Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 4
- 238000004088 simulation Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002332 oil field water Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/20—Displacing by water
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/40—Controlling or monitoring, e.g. of flood or hurricane; Forecasting, e.g. risk assessment or mapping
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Mining & Mineral Resources (AREA)
- Geochemistry & Mineralogy (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Evolutionary Computation (AREA)
- Geometry (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention provides a system and a method for determining a water absorption profile, wherein the system at least comprises a statistics well group basic data module, a calculation well group communication data module, a prediction module, a judgment module and a selection module; the statistical well group basic data module is used for counting oil reservoir data, production data and annual measure conditions of a sample water injection well and a corresponding oil well; the well group communication data calculation module is used for analyzing and calculating related data and graphs; the prediction module is used for fitting and predicting the relative water absorption of each small layer of the water injection well; the judging module is used for comparing the relative water absorption of each small layer with the water absorption profile measured last time to determine the water absorption variation; the selection module is used for helping to take injection increasing measures or profile control measures on the water absorption uneven well. The invention avoids time and labor consumption in underground water absorption profile test, effectively reduces labor and mechanical cost, and provides an economic and effective water absorption profile determination method for oil fields.
Description
Technical Field
The invention belongs to the technical field of oil field injection water development, and particularly relates to a system and a method for determining a water absorption profile.
Background
In the process of oilfield water injection development, the water absorption profile can reflect the water absorption condition difference of each small layer in the well section of the development layer, and the difference can well reflect the seepage characteristic of the oil layer injection and production system. For water injection development of oil fields, the phenomenon of injection water finger-in and kick-in is caused by the heterogeneity of oil reservoirs and the unbalance of the inside of an injection and production well group, so that the injection water is invalid and the corresponding oil well yield is decreased, therefore, the water absorption profile of a water well must be clearly known, so that the profile state is adjusted in time to improve the water flooding wave and system. At present, the water absorption profile is mainly known to be measured by methods such as on-site logging, a fluid dynamics calculation method, numerical simulation and the like. The logging interpretation needs field test, and is long in time and high in labor cost; the seepage mechanics calculation method does not fully consider the material balance, pressure difference, connectivity and the like of the reservoir, and the calculation result error is larger; although the numerical simulation method is more convenient, the numerical simulation method needs to be established on an accurate geological model, and the workload is high. Accordingly, there is a need to develop a system and method for determining a water uptake profile.
Disclosure of Invention
In order to solve the problems of long testing time, high labor cost, large numerical simulation workload and large result error in the prior art, the invention provides a system and a method for determining a water absorption section. The invention can simply and effectively determine the water absorption section, and solves the problems that the water absorption section is not clear and is unfavorable for water injection development.
The invention adopts the technical scheme that:
the system for determining the water absorption profile at least comprises a statistics well group basic data module, a calculation well group communication data module, a prediction module, a judgment module and a selection module;
the statistical well group basic data module is used for counting oil reservoir data, production data and annual measure conditions of a sample water injection well and a corresponding oil well;
the well group communication data calculation module is used for analyzing and calculating related data and graphs;
the prediction module is used for fitting and predicting the relative water absorption of each small layer of the water injection well;
the judging module is used for comparing the relative water absorption of each small layer with the water absorption profile measured last time to determine the water absorption variation;
the selection module is used for helping to take injection increasing measures or profile control measures on the water absorption uneven well.
A method for determining a water absorption profile, comprising the steps of:
step one, counting basic data of a water well and a corresponding oil well in a well group;
step two, according to the well group basic data counted in the step one, determining an oil-water communication relation of the well group, establishing a prediction model, analyzing and determining the relative water absorption of each small layer of the water absorption profile of the historical water injection well, and fitting with the relative water absorption of each small layer of the water absorption profile actually measured in the history;
predicting the water absorption profile relative water absorption data of the current water injection well by using the established prediction model;
comparing the obtained relative water absorption of each small layer with the relative water absorption of each small layer of the water absorption profile measured last time;
and fifthly, selecting injection increasing measures or profile control measures for the water absorption uneven well according to the comparison result of the step four.
In the first step, the basic data at least comprises sand thickness, porosity, permeability, small layers of development layers, sand-to-ground ratio, well depth, water injection pressure, water injection quantity, historical water absorption profile, oil well yield, water content, oil pressure, well distance, historical production data, historical yield split data and historical liquid production profile.
In the second step, the method for determining the communication relation of the oil-water well comprises the following steps:
firstly, the relative water absorption is directly affected by the communication condition of oil-water wells, the oil-water wells are not communicated, and the water injection well does not absorb water; the connectivity of the oil-water well is good, and the water absorption of the water injection well is relatively good;
secondly, inputting each basic data into a prediction model as an influence factor, and randomly distributing the weight of each basic data in the prediction model after initialization;
thirdly, fitting by taking oil well yield split data as an objective function, and adjusting the weight of each influencing factor by using a cocoon stripping and root searching algorithm;
fourth, calculate the output of every small floor of the oil well and actual history determine the difference of oil well split output, meet the error less than 5%, consider the result of calculation reliable.
In the second step, the method for determining the relative water absorption capacity of each small layer of the water absorption profile of the historical water injection well comprises the following steps: the method comprises the following specific steps:
1. calculating the yield of each small layer of the oil well according to the calculation well group communication data module;
2. according to the calculated output, the relative water absorption of each small layer of the history is determined by combining the production data of the oil-water well, and the balance coefficient is determined, wherein the calculation formula is as follows:
wherein: q wi The relative water absorption of each small layer of the water injection well is achieved; q oi The relative liquid production amount of each small layer of the oil production well is; p (P) w Is the bottom hole pressure of the current water well; p (P) wf Is the bottom hole pressure of the current water well; p (P) wo The bottom hole flow pressure of the water well is used for betting the initial stage; p (P) wf The bottom hole flow pressure of the primary water well is produced; alpha is a balance coefficient;
3. and determining the relative water absorption of each current small layer according to the current small layer yield and balance coefficient obtained by the steps and combining the current production data of the oil-water well.
The balance coefficient is adjusted to ensure that the relative error of the fitting result of the obtained relative water absorption of all water absorption sections of the historical water injection well and the relative water absorption of all water absorption sections actually measured in the history is not more than 5%.
In the fifth step, when the predicted water absorption layer number is increased compared with the water absorption layer number actually measured last time, and the relative water absorption difference of each small layer is not great, the water absorption of the current water injection well is considered, and no measures are recommended; when the predicted water absorption layer number is reduced compared with the water absorption layer number which is actually measured at the last time, the relative water absorption phase of each small layer is greatly different, the water absorption of some small layers is great, and when the water absorption of some small layers is small, the water absorption of the current water injection well is considered to be uneven, and a profile control measure is recommended to be adopted for the water injection well; when the predicted water absorption layer number is reduced compared with the water absorption layer number in the last actual measurement, the relative water absorption of each small layer is not greatly different, basically water absorption is less, even water absorption is not carried out, and the water injection well is recommended to take the injection increasing measures.
The beneficial effects of the invention are as follows:
the invention considers the reservoir material balance, pressure difference and connectivity, and the result is accurate. The invention can simply and effectively determine the water absorption section, and solves the problems that the water absorption section is not clear and is unfavorable for water injection development. Compared with a seepage mechanics calculation method, the accuracy of water absorption profile recognition is effectively improved; compared with numerical simulation and logging interpretation, the method greatly reduces the workload, provides a measure for effectively selecting the profile adjustment, and provides a basis for effectively injecting water and improving the recovery ratio of the oil field.
Further description will be made below with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram of a system for determining a water absorption profile.
Detailed Description
Example 1:
in order to solve the problems of long testing time, high labor cost, large numerical simulation workload and large result error in the prior art, the invention provides a system and a method for determining a water absorption profile as shown in fig. 1. The invention can simply and effectively determine the water absorption section, and solves the problems that the water absorption section is not clear and is unfavorable for water injection development.
The system for determining the water absorption profile at least comprises a statistics well group basic data module, a calculation well group communication data module, a prediction module, a judgment module and a selection module;
the statistical well group basic data module is used for counting oil reservoir data, production data and annual measure conditions of a sample water injection well and a corresponding oil well;
the well group communication data calculation module is used for analyzing and calculating related data and graphs;
the prediction module is used for fitting and predicting the relative water absorption of each small layer of the water injection well;
the judging module is used for comparing the relative water absorption of each small layer with the water absorption profile measured last time to determine the water absorption variation;
the selection module is used for helping to take injection increasing measures or profile control measures on the water absorption uneven well.
The specific implementation steps of the invention are as follows:
(1) Counting the thickness, porosity, permeability, small number of layers of development layers, sand-to-ground ratio, well depth, water injection pressure, water injection quantity, historical water absorption profile, oil well yield, water content, oil pressure, well distance, historical production data, historical yield splitting data and historical liquid production profile of a water well in a well group and a corresponding oil well;
(2) Calculating the oil-water communication relation of the well group, analyzing and calculating the relative water absorption of each small layer of the water absorption profile of the historical water injection well, and fitting with the relative water absorption of each small layer of the water absorption profile actually measured in the history;
(3) Establishing a prediction model, predicting the water absorption profile relative water absorption data of the current water injection well, and comparing the calculated relative water absorption of each small layer with the relative water absorption of each small layer of the water absorption profile measured last time;
(4) And selecting the water absorption uneven well by adopting injection increasing measures or profile control measures according to the result of comparing the calculated relative water absorption with the relative water absorption of each small layer measured last time.
The invention considers the system and the method for determining the water absorption section with relatively simple reservoir material balance, pressure difference and connectivity, and solves the problems that the water absorption section is unknown and is unfavorable for water injection development. The recognition accuracy of the water absorption profile is effectively improved; compared with numerical simulation and logging interpretation, the method greatly reduces the workload, provides a measure for effectively selecting the profile adjustment, and provides a basis for effectively injecting water and improving the recovery ratio of the oil field.
Example 2:
based on the embodiment 1, in this embodiment, the present invention provides a method for determining a water absorption profile, which specifically includes the following steps:
step one, counting basic data of a water well and a corresponding oil well in a well group;
step two, according to the well group basic data counted in the step one, determining an oil-water communication relation of the well group, establishing a prediction model, analyzing and determining the relative water absorption of each small layer of the water absorption profile of the historical water injection well, fitting the relative water absorption of each small layer of the water absorption profile actually measured in the historical water injection well, and ensuring reliable calculation results;
step three, under the condition of reliable results, predicting the water absorption profile relative water absorption data of the current water injection well through the established prediction model;
comparing the obtained relative water absorption of each small layer with the relative water absorption of each small layer of the water absorption profile measured last time;
and fifthly, selecting injection increasing measures or profile control measures for the water absorption uneven well according to the comparison result of the step four.
In the first step, the basic data at least comprises sand thickness, porosity, permeability, small layers of development layers, sand-to-ground ratio, well depth, water injection pressure, water injection quantity, historical water absorption profile, oil well yield, water content, oil pressure, well distance, historical production data, historical yield split data and historical liquid production profile.
Preferably, in the second step, the method for determining the communication relationship between the oil and water wells comprises the following steps:
firstly, the relative water absorption is directly affected by the communication condition of oil-water wells, the oil-water wells are not communicated, and the water injection well does not absorb water; the connectivity of the oil-water well is good, and the water absorption of the water injection well is relatively good;
secondly, inputting each basic data into a prediction model as an influence factor, and randomly distributing the weight of each basic data in the prediction model after initialization;
thirdly, fitting by taking oil well yield split data as an objective function, and adjusting the weight of each influencing factor by using a cocoon stripping and root searching algorithm;
fourth, calculate the output of every small floor of the oil well and actual history determine the difference of oil well split output, meet the error less than 5%, consider the result of calculation reliable.
Preferably, in the second step, the method for determining the relative water absorption capacity of each small layer of the water absorption profile of the historical water injection well comprises the following steps: the method comprises the following specific steps:
1. calculating the yield of each small layer of the oil well according to the calculation well group communication data module;
2. according to the calculated output, the relative water absorption of each small layer of the history is determined by combining the production data of the oil-water well, and the balance coefficient is determined, wherein the calculation formula is as follows:
wherein: q wi The relative water absorption of each small layer of the water injection well is achieved; q oi The relative liquid production amount of each small layer of the oil production well is; p (P) w Is the bottom hole pressure of the current water well; p (P) wf Is the bottom hole pressure of the current water well; p (P) wo The bottom hole flow pressure of the water well is used for betting the initial stage; p (P) wf The bottom hole flow pressure of the primary water well is produced; alpha is a balance coefficient;
3. and determining the relative water absorption of each current small layer according to the current small layer yield and balance coefficient obtained by the steps and combining the current production data of the oil-water well.
Preferably, the balance coefficient is adjusted to ensure that the relative error of the fitting result of the obtained relative water absorption capacity of all water absorption sections of the historical water injection well and the relative water absorption capacity of all water absorption sections actually measured in the history is not more than 5%.
Preferably, in the fifth step, when the number of the predicted water absorption layers is increased compared with the number of the water absorption layers actually measured last time, and the relative water absorption of each small layer is not greatly different, the water absorption of the current water injection well is considered, and no measures are recommended; when the predicted water absorption layer number is reduced compared with the water absorption layer number which is actually measured at the last time, the relative water absorption phase of each small layer is greatly different, the water absorption of some small layers is great, and when the water absorption of some small layers is small, the water absorption of the current water injection well is considered to be uneven, and a profile control measure is recommended to be adopted for the water injection well; when the predicted water absorption layer number is reduced compared with the water absorption layer number in the last actual measurement, the relative water absorption of each small layer is not greatly different, basically water absorption is less, even water absorption is not carried out, and the water injection well is recommended to take the injection increasing measures.
The invention can realize the adjustment of the injection increasing measure or the profile control measure for the uneven water absorption well, and is used for the follow-up continuous work. Meanwhile, the situation of each water injection well can be judged, and different follow-up measures can be made according to different situations. The prediction module in the invention effectively predicts the state of the water injection well and whether measures are needed. The method has simple and effective process and can select the section adjusting measures.
According to the method, the balance, the pressure difference and the connectivity of reservoir substances are considered, the water absorption section is determined more simply, and compared with a seepage mechanics calculation method, the accuracy of water absorption section recognition is improved effectively; compared with numerical simulation and logging interpretation, the method greatly reduces the workload, provides effective section adjustment measures, and provides basis for effective water injection and enhanced recovery of oil fields
The above examples are merely illustrative of the present invention and are not meant to limit the scope of the present invention, and all designs that are the same or similar to the present invention are within the scope of the present invention. The reagents and methods thereof not described in detail in this example are well known and commonly used in the industry and will not be described in detail.
Claims (6)
1. A method of determining a water absorption profile, characterized by: the method comprises the following specific steps:
step one, counting basic data of a well and a corresponding well in a well group through a system for determining a water absorption profile;
step two, according to the well group basic data counted in the step one, determining an oil-water communication relation of the well group, establishing a prediction model, analyzing and determining the relative water absorption of each small layer of the water absorption profile of the historical water injection well, and fitting with the relative water absorption of each small layer of the water absorption profile actually measured in the history;
the method for analyzing and determining the relative water absorption of each small layer of the water absorption profile of the historical water injection well comprises the following steps: the method comprises the following specific steps:
1. calculating the yield of each small layer of the oil well according to the well group communication data calculating module;
2. according to the calculated output of each small layer of the oil well, the relative water absorption of each historical small layer is determined by combining the production data of the oil-water well, and the balance coefficient is determined;
3. determining the relative water absorption of each current small layer according to the current small layer yield and balance coefficient obtained by the steps and combining the production data of the current oil-water well;
predicting the water absorption profile relative water absorption data of the current water injection well by using the established prediction model;
comparing the obtained relative water absorption of each small layer with the relative water absorption of each small layer of the water absorption profile measured last time;
fifthly, taking injection increasing measures or profile control measures for the water absorption uneven well according to the comparison result of the step four;
in the first step, the system for determining the water absorption profile at least comprises a statistics well group basic data module, a calculation well group communication data module, a prediction module, a judgment module and a selection module;
the statistical well group basic data module is used for counting oil reservoir data, production data and annual measure conditions of a sample water injection well and a corresponding oil well;
the well group communication data calculation module is used for analyzing and calculating data and graphics related to the well group communication data;
the prediction module is used for fitting and predicting the relative water absorption of each small layer of the water injection well;
the judging module is used for comparing the relative water absorption of each small layer with the water absorption profile measured last time to determine the water absorption variation;
the selection module is used for taking injection increasing measures or profile control measures on the uneven water absorption well.
2. A method of determining a water absorption profile according to claim 1, wherein: in the first step, the basic data at least comprises sand thickness, porosity, permeability, small layers of development layers, sand-to-ground ratio, well depth, water injection pressure, water injection quantity, historical water absorption profile, oil well yield, water content, oil pressure, well distance, historical production data, historical yield split data and historical liquid production profile.
3. A method of determining a water absorption profile according to claim 1, wherein: in the second step, the method for determining the communication relation of the oil-water well comprises the following steps:
firstly, the relative water absorption is directly affected by the communication condition of oil-water wells, the oil-water wells are not communicated, and the water injection well does not absorb water; the connectivity of the oil-water well is good, and the water absorption of the water injection well is relatively good;
secondly, inputting each basic data into a prediction model as an influence factor, and randomly distributing the weight of each basic data in the prediction model after initialization;
thirdly, fitting by taking oil well yield split data as an objective function, and adjusting the weight of each influencing factor by using a cocoon stripping and root searching algorithm; fourth, calculate the output of every small floor of the oil well and actual history determine the difference of oil well split output, meet the error less than 5%, consider the result of calculation reliable.
4. A method of determining a water absorption profile according to claim 1, wherein: in the second step, the calculation formula of the relative water absorption of each small layer is as follows:
wherein: q wi The relative water absorption of each small layer of the water injection well is achieved; q oi The relative liquid production amount of each small layer of the oil production well is; p (P) w Is the bottom hole pressure of the current water well; p (P) wf Is the bottom hole pressure of the current water well; p (P) wo The bottom hole flow pressure of the water well is used for betting the initial stage; p (P) wfo The bottom hole flow pressure of the primary water well is produced; alpha balance coefficient.
5. A method of determining a water absorption profile according to claim 1, wherein: the balance coefficient is adjusted to ensure that the relative error of the fitting result of the obtained relative water absorption of all water absorption sections of the historical water injection well and the relative water absorption of all water absorption sections actually measured in the history is not more than 5%.
6. A method of determining a water absorption profile according to claim 1, wherein: in the fifth step, when the predicted water absorption layer number is increased compared with the water absorption layer number actually measured last time, and the relative water absorption difference of each small layer is not great, the water absorption of the current water injection well is considered, and no measures are recommended; when the predicted water absorption layer number is reduced compared with the water absorption layer number which is actually measured at the last time, the relative water absorption phase of each small layer is greatly different, the water absorption of some small layers is great, and when the water absorption of some small layers is small, the water absorption of the current water injection well is considered to be uneven, and a profile control measure is recommended to be adopted for the water injection well; when the predicted water absorption layer number is reduced compared with the water absorption layer number in the last actual measurement, the relative water absorption of each small layer is not greatly different, basically water absorption is less, even water absorption is not carried out, and the water injection well is recommended to take the injection increasing measures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011397455.3A CN112554854B (en) | 2020-12-04 | 2020-12-04 | System and method for determining water absorption profile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011397455.3A CN112554854B (en) | 2020-12-04 | 2020-12-04 | System and method for determining water absorption profile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112554854A CN112554854A (en) | 2021-03-26 |
| CN112554854B true CN112554854B (en) | 2023-04-25 |
Family
ID=75047789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011397455.3A Active CN112554854B (en) | 2020-12-04 | 2020-12-04 | System and method for determining water absorption profile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112554854B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100526602C (en) * | 2006-03-24 | 2009-08-12 | 中国石油天然气股份有限公司 | Complicated fault block fluvial facies reservoir oil water well using situation split system |
| CN103628850B (en) * | 2012-08-23 | 2016-03-02 | 中国石油化工股份有限公司 | A kind of waterflooding oil field integral profile control water blockoff decision-making technique |
| CN106777651B (en) * | 2016-12-09 | 2021-07-06 | 北京源博科技有限公司 | Oil-water well yield splitting method based on injection-production balance principle |
| CN109543828B (en) * | 2018-12-28 | 2020-10-23 | 中国石油大学(华东) | Water absorption profile prediction method based on small sample condition |
-
2020
- 2020-12-04 CN CN202011397455.3A patent/CN112554854B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112554854A (en) | 2021-03-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102041995B (en) | System for monitoring complicated oil deposit flooding conditions | |
| CN109543828B (en) | Water absorption profile prediction method based on small sample condition | |
| CN107038268B (en) | Method for determining water flooding wave sum coefficient of heterogeneous reservoir five-point well pattern | |
| CN108301825B (en) | High-temperature high-pressure reservoir pore pressure analysis method | |
| CN110162922A (en) | A kind of integrated recognition method of water-drive pool dominant flowing path | |
| CN106150477A (en) | A kind of method determining single well controlled reserves | |
| CN110162851B (en) | Cable formation test pumping numerical simulation and numerical correction method of process thereof | |
| CN109033504A (en) | A kind of casing damage in oil-water well prediction technique | |
| CN111706318B (en) | Method for determining distribution condition of residual oil of hypotonic reservoir | |
| CN111173507A (en) | High-water-cut oil field residual oil prediction method | |
| CN114066666A (en) | Method for analyzing connectivity among wells through injection-production profile monitoring data | |
| CN107355200B (en) | Method for improving water drive well selection by nano-micron particle dispersion system | |
| CN112554854B (en) | System and method for determining water absorption profile | |
| CN112302594A (en) | Method, device and equipment for determining connection structure of heterogeneous water-drive reservoir | |
| CN116384085A (en) | Compact oil and gas reservoir capacity splitting method | |
| CN112647930B (en) | Water finding method for oil reservoir engineering of horizontal well | |
| CN112465218B (en) | Offshore thin interbed sandstone oilfield layer system division and perforation scheme optimization method | |
| CN111963161B (en) | Method and device for determining hidden abnormal oil well | |
| CN112464136B (en) | Method for predicting directional well production energy and development effect of offshore thin interbed sandstone oil field | |
| CN116011268A (en) | Quantitative description method of dominant seepage channel | |
| CN115705452A (en) | Novel recovery ratio prediction method for middle and later stages of integrated sandstone reservoir development | |
| CN113107464B (en) | Horizontal well stepping type water flooded layer identification logging method | |
| CN114427444A (en) | Bottom hole pressure prediction method for oil production well in flowing period | |
| CN114810012B (en) | Simulation method for drainage and gas production measures of shaft-stratum integrated compact gas reservoir | |
| CN117627608A (en) | Efficient prediction method for energy-increasing fracturing effect of low-permeability reservoir |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |